<nav class="navbar navbar-expand-lg navbar-light fixed-top">
  <div class="container">
    <a class="navbar-brand" href="#">
      <img src="/assets/img/logo.png" alt="奶龙" width="40" class="d-inline-block align-text-top">
    </a>
    <span class="navbar-brand" id="nailong_hut">奶龙小屋</span>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarNav">
      <ul class="navbar-nav ms-auto">
        <!-- 首页下拉 -->
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="/navigate.html" data-bs-toggle="dropdown">首页</a>
          <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="/navigate.html#home">奶龙首页</a></li>
            <li><a class="dropdown-item" href="/navigate.html#profile">奶龙档案</a></li>
          </ul>
        </li>

        <!-- 视频下拉 -->
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#video" data-bs-toggle="dropdown">奶龙视频</a>
          <ul class="dropdown-menu">
			<li><a class="dropdown-item" href="/pages/nailong_video.html#home">奶龙视频</a></li>  
            <li><a class="dropdown-item" href="#instance">奶龙瞬间</a></li>
          </ul>
        </li>

        <!-- 周边下拉 -->
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="/pages/nailong_surroundings.html#home" data-bs-toggle="dropdown">奶龙周边</a>
          <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="/pages/nailong_surroundings.html#home">奶龙周边</a></li>
            <li><a class="dropdown-item" href="/pages/nailong_surroundings.html#culture">奶龙文创</a></li>
          </ul>
        </li>

        <!-- 朋友下拉 -->
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="/pages/nailong_friends.html#friends" data-bs-toggle="dropdown">奶龙朋友</a>
          <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="/pages/nailong_friends.html#home">奶龙朋友</a></li>
			<li><a class="dropdown-item" href="/pages/nailong_friends.html#story">邂逅小七</a></li>
          </ul>
        </li>
      </ul>
    </div>
  </div>
</nav>